Electrodeposited nickel, cobalt, and their alloys are critical for applications including energy storage, electrocatalysis and magnetic devices. Traditional aqueous electrodeposition suffers from hydrogen evolution, causing embrittlement, while deep eutectic solvents (DES) offer a promising alternative owing to their low water activity. Here, amino acid-metal nitrate DES (Ni(NO3)2 and/or Co(NO3)2-L-serine)

Silicon (Si)-based anode materials are promising for lithium-ion batteries (LIBs) due to their high theoretical capacity, but challenges such as large volume changes during cycling and low conductivity hinder their practical application. In this study, we report a self-supporting, binder-free Si/C composite anode featuring structurally continuous, three-dimensional (3D) graphene-like silicon thin films

Two lightweight metals of Ti and Al alloys are widely applied in the aerospace industry, which are inevitably connected as Ti-Al joints in practical applications. The assembly method significantly influences the galvanic corrosion behavior of Ti-Al joints. The galvanic corrosion rate and “effect distance” of TC18 Ti alloy and 20250 Al alloy joints assembled with the bolts of 304 stainless steel and

The K0.3Mn0.7CoxFe0.3-xO2 compound was synthesized using a co-precipitation method, employing potassium citrate as a potassium source and Co3+ and Fe3+ ions as doping agents. It is found that adding dosages of Co3+ and Fe3+ are a pivotal factor influencing the electrochemical performance of K0.3Mn0.7CoxFe0.3-xO2. For instance, the K+ storage capacity of K0.3Mn0.7Co0.2Fe0.1O2 achieves the 54.8 mAh g-1

Adjusting the composition and microstructure of multiphase nanocomposites is a promising way to increase the storage capacity of the electrode. In this work, cobalt ion leachate is recovered from the cathode material of spent lithium cobalt oxide batteries through molten salt-assisted calcination and water leaching process. Using the cobalt ion leachate as the precursor, spherical CoxNi3-x-MOF precursors

Li-ion batteries, while widely used, face safety issues with organic electrolytes. Ionic liquids (ILs) offer safer alternatives, but challenges such as low salt solubility persist. Adding zwitterions (ZIs) to IL/Li salt composites increases Li-salt dissociation, improving their electrochemical properties. This study investigates the effects of adding the ZI 3-(triethylphosphonio)propane-1-sulfonate

Dye-sensitized solar cell (DSSC) is a new type of solar cell that has attracted interest due to its ability to convert energy at a low cost, with simple fabrication, and non-toxic nature. Utilisation of oyster mushroom dye as a natural dye for DSSC is attributed to their large biomass yield and the fact that they can be cultivated in a regulated environment. The TiO2 pH6 was then used to study different

Corrosion in concrete prevents in-situ observation, necessitating models to provide insight into the local reaction currents. We present a computational method for predicting corrosion rates of reinforcements within concrete under natural conditions, i.e. requiring the corrosion current to be supported by equal cathodic currents. In contrast to typical corrosion models, where these two counteracting

Doping in transition metal site of Na3V2(PO4)2F3 (NVPF) is considered as novel strategy to leverage the electrochemical performance of polyanionic fluorophosphates. Here in we report a dual doping strategy by introducing aliovalent and isovalent dopants in to the V site to improve the cycling stability and rate performance of NVPF. The impact of different concentration of Cr and Mg in V lattice on

Although it has already been reported that anodic oxidation of various FeAl alloys can be successfully employed for the fabrication of nanostructured semiconducting oxide films, the photoelectrochemical activity of this kind of materials has not been studied so far. Therefore, this work reports, for the very first time, a detailed characterization of the physicochemical and photoelectrochemical properties

Na2Ti6O13, with its unique tunnel structure and high operating voltage, has emerged as a promising anode material for sodium-ion batteries. However, its low electrical conductivity and limited reversible capacity hinder its practical application. This study aimed to improve the performance of Na2Ti6O13 by carbon coating via simple high-temperature solid-state method. The Na2Ti6O13 was synthesized with

The incorporation of electron-withdrawing 1,3,4-oxadiazole into the extended oligomeric π-electron structure can lead to highly attractive compounds in the research and development of organic light-emitting diodes, fluorescent materials, and ambipolar organic semiconductors. Herein, we describe the synthesis of parental 2,5-bis(2,3,4,5,6-pentafluorophenyl)-1,3,4-oxadiazole (1) and its next three new

Conversion-alloying bimetallic phosphides with heterogeneous interfaces have been reported to exhibit outstanding electrochemical performance for alkali-metal-ion batteries. Here, CoP2-MnP bimetallic phosphides heterostructure embedded in N-doped carbon nanofibers composite (CMP@NCNFs) has been successfully synthesized through the utilization of electrospinning and low-temperature phosphorization.

The negative plate additive can significantly enhance the performance of lead-carbon batteries (LCBs). In this study, manganese oxide/reaming apricot shell carbon composite (Mn-RASC) as a negative additive was prepared by employing a simple KOH activation of apricot shells and a hydrothermal strategy to enhance the electrochemical properties of the LCBs. The additive is constructed to alleviate the

The development of advanced anode materials for sodium-ion batteries (SIBs) is critical for enhancing energy storage capabilities. Herein, we present a simple and cost-effective one-step carbonization method to engineer tunable defects and functional groups in coal-derived hard carbon (HC) anodes. By exploiting the inherent features of coal, such as its aromatic structure and reactive functionalities

Although Li metal batteries have attracted much attention as high energy density rechargeable batteries, poor cycle ability and safety remain great concerns for practical application. The development of suitable electrolytes is the key to improving the performance of Li metal batteries, and research on electrolytes has been vigorously pursued. In this study, weakly coordinating properties of linear

Biogas-fed solid oxide fuel cell (SOFC) technology based on Ni-GDC electrolyte-supported cell (ESC) offers a sustainable solution for European farms’ heat and power demands with superior efficiency. However, the understanding of the degradation and recovery behavior of the Ni-GDC based ESC under processed biogas environment is limited. This study investigates the responses of various electrochemical

The field of 2D materials has rapidly grown and has expanded further by the tunability of their unique properties for device fabrication. Covalent functionalization, such as spontaneous grafting and electrografting, has been employed to enhance dispersibility and optimize performance for various applications; however, several challenges still remain. Current methods often require reactive conditions

Aqueous Zn-ion batteries (AZIBs) have garnered significant attention for grid-level energy storage systems owing to their high safety, cost-effectiveness and environmental friendliness. However, the practical application of the AZIBs always suffers from uncontrollable Zn dendrite growth, low coulombic efficiency and the irreversible kinetics of electrodes. Herein, we propose a highly zincophilic organic

The development of lithium-sulfur batteries, which are a new type of energy storage device, is hindered by the poor performance of sulfur cathodes and the shuttle effect of polysulfides.In this study, a composite precursor was successfully constructed through the hydrophobic self-assembly of lignin, carbon nanotubes (CNTs), and zinc carbonate, wherein lignin molecules encapsulate CNTs. Subsequently

This work focuses on the production of sustainable membranes based on collagen and chitosan as separators in lithium-ion batteries. Membranes were prepared by freeze-drying with varying collagen and chitosan contents. All membranes show interconnected pores with different pore sizes and porosity above 90 %, allowing high values of electrolyte uptake. As for thermal and mechanical characteristics, the

Monocrystalline Ni-rich layered oxide is a promising cathode material with excellent cyclic stability attributed to the absence of grain boundaries. However, the majority of single-crystal LiNixCoyMn1-x-yO2 (NCM) cathodes are prepared by the traditional high-temperature solid-phase method displays "quasi single crystals" formed through particle aggregation, and then the true single crystals can be

Silicon is considered as an ideal high-capacity alloy-type anode material for lithium-ion batteries. To address its inherent issues of volume expansion and poor conductivity, various strategies for preparing silicon composite materials have been developed. However, three dimensional porous structured conductive agents may address these two drawbacks simultaneously. In this work, a thin-layer perylenetetracarboxylic

Mesoporous carbons (MCs) are prepared using dual-templating and doped with cobalt, iron and nitrogen for electrocatalytic applications and are characterised using various physico-chemical methods. Prepared materials are employed as oxygen reduction reaction (ORR) electrocatalysts and cathode catalysts of an anion-exchange membrane fuel cell (AEMFC). The MC materials are prepared using two novel and

Nickel-rich LiNi0.8Co0.1Mn0.1O2 (NCM811) material is anticipated to be the cathode material of the upcoming generation lithium-ion batteries (LIBs). Nevertheless, the actual use of NCM811 is limited by its structural instability under high voltage cycling. To enhance the NCM811 cyclic stability at a high voltage, we suggest an additive-induced strategy to create a robust interphase on electrode surface

We present a new procedure to find apparent transport numbers for ion-exchange membranes from the Seebeck coefficient as function of the electrolyte partial molar entropy. The method is relevant for several membrane processes, e.g. reverse and normal electrodialysis. Here, we report data for single-electrolyte solutions, as well as aqueous solutions of both MgCl2 and NaCl with molalities varying from

Compared with traditional two-dimensional (2D) culture systems, three-dimensional (3D) culture systems can better simulate the physiological environment of cells in vivo, providing more ac-curate and real-time data. Although many reported 3D culture scaffolds can simulate the in vivo microenvironment, their use in real-time electrochemical sensing still limited by their insulating and non-compressible